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GRAND RIVER VALLEY KOA

Ohio — Transient Non-Community — PWSID: OH2846612

System Information

PWSIDOH2846612
System NameGRAND RIVER VALLEY KOA
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedJan 30, 1981
Last ReportedNov 17, 2025

Location & Contact

StateOhio
CityTHOMPSON
ZIP Code44086
Address6445 Ledge Road
OrganizationCARSON, CHRIS
Phone406-465-3059

Population & Service

Population Served412
Service Connections191

Drinking Water Violations (60)

This water system has 60 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Sep 22, 2023 — Public Notice Other No No — — — Resolved Dec 21, 2023 Public Notice Rule and Revised PN Rule
Sep 22, 2023 — Public Notice Other No No — — — Resolved Dec 21, 2023 Public Notice Rule and Revised PN Rule
Apr 27, 2023 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Apr 27, 2023 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Apr 27, 2023 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Archived Apr 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Archived Apr 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Archived Apr 30, 2023 Revised Total Coliform Rule
Oct 20, 2019 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Aug 1, 2019 Aug 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2019 Revised Total Coliform Rule
Aug 1, 2019 Aug 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2019 Revised Total Coliform Rule
Aug 1, 2019 Aug 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2019 Revised Total Coliform Rule
Aug 1, 2019 Aug 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2019 Revised Total Coliform Rule
Aug 1, 2019 Aug 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2019 Revised Total Coliform Rule
May 1, 2019 May 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2019 Revised Total Coliform Rule
May 1, 2019 May 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2019 Revised Total Coliform Rule
May 1, 2019 May 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2019 Revised Total Coliform Rule
May 1, 2019 May 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2019 Revised Total Coliform Rule
May 1, 2019 May 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2019 Revised Total Coliform Rule
Sep 23, 2018 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2018 Jul 31, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2018 Revised Total Coliform Rule
Jul 1, 2018 Jul 31, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2018 Revised Total Coliform Rule
Jul 1, 2018 Jul 31, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2018 Revised Total Coliform Rule
May 2, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved May 23, 2017 Revised Total Coliform Rule
May 2, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved May 23, 2017 Revised Total Coliform Rule
May 2, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved May 23, 2017 Revised Total Coliform Rule
May 2, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved May 23, 2017 Revised Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2015 Sep 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
Jul 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Jul 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Jul 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Oct 1, 2003 Dec 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2003 Total Coliform Rule
Oct 1, 2003 Dec 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2003 Total Coliform Rule
Oct 1, 2003 Dec 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2003 Total Coliform Rule
Jul 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Jul 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Jul 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Jul 1, 2002 Sep 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2002 Total Coliform Rule
Jan 1, 1998 Jun 30, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 1998 Nitrate Rule
Jan 1, 1998 Jun 30, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 1998 Nitrate Rule
Jan 1, 1998 Jun 30, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 1998 Nitrate Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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